/*
 * DefaultNexusTest.java
 * 
 * Copyright (c) 2011, Ralf Biedert, DFKI. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer. Redistributions in binary form must reproduce the
 * above copyright notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the author nor the names of its contributors may be used to endorse or
 * promote products derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */
package junit;

import java.util.Collection;

import junit.framework.Assert;

import net.xeoh.nexus.DefaultNexus;
import net.xeoh.nexus.InternalService;
import net.xeoh.nexus.Nexus;
import net.xeoh.nexus.Service;

import org.junit.Test;

/**
 * Test Case.
 * 
 * @author Ralf Biedert
 * @since 1.0
 */
public class DefaultNexusTest {
    /** Basic functionality */
    @Test
    public void testSimple() {
        final DefaultNexus nexus = new DefaultNexus();
        final Collection<? extends Service> services = InternalService.wrap(nexus);
        
        nexus.register(services);
        Assert.assertEquals(nexus, nexus.get(Nexus.class));
        Assert.assertEquals(1, nexus.getAll(Nexus.class).size());
        Assert.assertEquals(nexus, nexus.getAll(Nexus.class).iterator().next());
        
        nexus.deregister(services);
        Assert.assertNull(nexus.get(Nexus.class));
        Assert.assertEquals(0, nexus.getAll(Nexus.class).size());
        
        nexus.register(services);
        nexus.register(InternalService.wrap(new DefaultNexus()));
        nexus.register(InternalService.wrap(new Object()));
        Assert.assertEquals(2, nexus.getAll(Nexus.class).size());
        Assert.assertEquals(3, nexus.getAll(Object.class).size());
        Assert.assertEquals(3, nexus.list().size());
        
        nexus.deregister(nexus.list());
        Assert.assertEquals(0, nexus.list().size());
    }
}
